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A new drug therapy is tested. Of 50 patients in the study, 40 had no recurrence in their illness after 18 months. With no drug

A new drug therapy is tested. Of 50 patients in the study, 40 had no recurrence in their illness after 18 months. With no drug therapy, the expected percentage of no recurrence would have been 75%. Does the data support the hypothesis that this percentage has increased? What is the p-value?

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